Needle Bar Rising - Baby Lock Mid-Line Machines Technical Training Manual

Adjustment
[Standard]
The right edge of the needle should be coincided with the outer rotary hook point when raising
needle bar 3.1 ± 0.2 mm (2.9 to 3.3 mm) up from its lowest position at the left base line.
[Adjustment]
1. Remove the front cover assy. (Refer to "2-7".)
2. Remove the presser foot.
3. Remove the needle plate B assy, the needle plate A assy and the inner rotary hook assy.
4. Attach the size 75/11 needle.
5. Start the test mode, and then select the #04 (3-Point Needle Drop mode).
6. Press the button on the screen to move needle bar to the left
base line.
7. Turn the pulley by hand to the front, and raise the needle bar 3.1 mm
up from its lowest position. (Fig.1)
8. Loosen the 2 screws of the timing pulley D. (Fig.2)
9. Turn the outer rotary hook assy by hand in the direction of the arrow,
and adjust the right edge of the needle to be coincide with the outer rotary hook assy point. (Fig.3)
*Key point
• Make sure that the larger side of feed cam faces to the front when the right edge of the needle is coincided
with the outer rotary hook point. (Fig.4)
10. Tighten the 2 screws of the timing pulley D to secure the timing pulley D to the lower shaft assy.
[Confirmation]
When the needle is lowered to the lowest point by turning the pulley by hand, check that the feed dog is under the
needle plate A assy.
Fig.1
Screws
Lower shaft assy
Fig.2
Timing pulley D

Needle bar rising

Pulley
Outer rotary
hook assy
Hex wrench
2.5 mm
4 - 13
39
3.1 ±0.2 mm (2.9 - 3.3 mm)
Needle bar
Set Screw, Socket (CP) M5X5
Right edge of needle and
tip coincide
Fig.3
Feed cam
Lower shaft assy
Front side
Fig.4